Improved car-coupling



No. 48,656, i PATENTEDJULY 11, 1865.

s. E. CHANEY. GAR GOUPLING.

UNITED STATES PATENT OFFICE;

SAML. E. CHANEYfOF HILLSBOROUGH, OHIO.

IM PROVED CRfCOUPLlNG.

Specification forming part of Letters Patent No. 48,656; dated J uly'll, -186,5.

To all 'whom t'tnay concern:

Be it known vthat I, SAMUEL E. CHANEY, of Hillsborough, in the county-of Highland and State of Ohio, have made new and useful Im-l provements in Oar-Couplings; and I do hereby declare the-lollowing to be' a l'ull, clear, and exact description of the nature,` construction, and operation of the same, reference being had to the accompanying drawings,iri which my improvement is representedvby a plan'view, thefupper portion ot' one ot the draw-headsbeing removedto show the interior, which contains Athe moving parts.

The object ot my improvement is to provide an automatic means of. attachment ofthe coupling-links which connect the respective drawheads of two cars, so that by the collision the unconnected end of the link shall act uponthe piston' which sustains the coupling-pin, and, thrusting it back, shall allow the pin to drop Ainto its lower position1 in which engages the coupling-link. v A

-1 The point of novelty in my improvement con-` sists'in the devices for limiting the motions ot' the said piston. 'l

To' enable one skilled lin the branch of 'mechanical construction and operation to which my invention appertains, I will proceed to describe it.

A A are -the draw-heads on the adjacent ends of the cars', and at the rear ot' each is a chamber traversed by the stem B of the pis ton B, the head of which occupies the opening C iu the draw-head and reciprocates therein under the counter impulses ot' thespring and contact with the link D of the other draw-head.

The spring E operates upon the rear of the piston-stem B', and vthe motion ot the piston in this, the outward direction, is limited bythe pin F, which occupies a slot, G, i'n the pistonstem. Y

The other details will be as clearly understood from a description of the operation, which is as follows: The link D, being thrust against the head ot' the piston B in one of the drawheadsdrives the said pistou inwardly, so that the coupling-pin H, whose end wassupported by the said piston, now drops, fallingwithiln the link and engaging it. The pressure being now removed, the spring E -acts upo'n the pistou, and through it upon the link, so as to retain the latter in a horizontal position readyifor engagement in the drawhead of the adja' cent car on being brought in contact therewithg; On this taking place the'pi'ston-head is'so far'f freceded in the direction ofthe motion of the approaching carA that the oblique rearfaces, d d, of the piston-head come in contact with .the corresponding portions a a of the draw. head and limit the play of the piston in-thatl direction.f whi1e,.on the releaseot .the.th.ru'st', the piston is brought in contact with the end of the link. When the cars are nncoupled by the withdrawal of a'coupling-pin, )EI- thepisL ton B is so far projected-aste intervene between the holes ou the upper and under-sides of the draw-head, so that theend ot the coupling-pin rests upon-it and is' ready for recouplin'gby thecontnct of the link which recedes 4the pistou. y

Under the conditions above described, when the end otlthe pin is resting upon the piston Th'e above specicationof my improvement in railroad-car couplingsl havesigned this` 26th day of' April, 1865.

sAM UEL n. oiANEY.

Witnesses:

FRANK G.-DEBRUIN, WM. M. MEER. 

